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Earth Observing Laboratory
Field Data Archive

OTREC: NCAR HCR radar moments data

Summary

HIAPER Cloud Radar (HCR) data collected aboard the NSF/NCAR GV HIAPER (Gulfstream-V High-performance Instrumented Airborne Platform for Environmental Research, HIAPER) (N677F) during OTREC (Organization of Tropical East Pacific Convection). The data were collected during 22 research flights which took place between August 7 and October 2, 2019, over the East Pacific and extreme SW Caribbean Ocean.

Data access

  • ORDER data to made available for download

Additional information

Identifier
Data Quality final
Versions
  • 0.1 (2019-11-07):

    Version 0.1 is the raw field data.

  • 1.0 (2020-01-03):

    Quality controlled final data set.

  • 2.0 (2020-02-24):

    Radar variables stayed the same. Model variables were upgraded to ERA5 (instead of ECMWF forecasts).

  • 2.1 (2020-08-10):

    Freezing level data field was added.

  • 2.2 (2021-04-20):

    Freezing level was replaced with melting layer field. Icing level was added.

  • 3.0 (2022-01-19):

    De-aliased velocity, convective/stratiform echo type, and particle identification were added.

  • 3.1 (2022-05-27):

    In the particle identification field (PID), liquid particles are no longer allowed at temperatures below -40 C.

  • 3.2 (2023-11-03):

    Improved echo type and melting layer fields.

  • 4.0 (2025-04-22):

    Adding new data variables from Doppler spectra.

(Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
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Language English
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  • climatologyMeteorologyAtmosphere
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Temporal coverage

Begin datetime 2019-08-07 00:00:00
End datetime 2019-10-03 00:00:00

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 15.00, Minimum (South) Latitude: 2.00
Minimum (West) Longitude: -90.00, Maximum (East) Longitude: -73.00

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

Citation

NCAR/EOL HCR Team. 2025. OTREC: NCAR HCR radar moments data. Version 4.0. null. https://doi.org/10.26023/V9DJ-7T9J-PE0S. Accessed 24 Jan 2026.

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NSF

This material is based upon work supported by the NSF National Center for Atmospheric Research, a major facility sponsored by the U.S. National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.